Vulnerability · Published Oct 15, 2026 · Assigned by ProgressSoftware
CVE-2026-106159Cross-Site Scripting via ToolBar ButtonGroup URLs in Kendo UI for jQuery
Medium 4.7
In plain English
A medium-severity security flaw in Kendo UI for jQuery from Progress Software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Official description
In Progress® Kendo® UI for jQuery versions starting with 2022.3.1109 and prior to 2026.3.1015, ToolBar ButtonGroup button URLs are concatenated into an unquoted href attribute after URL sanitization. An attacker who can control a button URL can supply an otherwise allowed HTTPS URL containing whitespace and additional attributes, including an event handler, and execute JavaScript in a user's browser when the affected button is interacted with. Successful exploitation can compromise the confidentiality and integrity of data accessible to the affected application. This issue is fixed in version 2026.3.1015.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Progress Software | Kendo UI for jQuery | 2022.3.1109 – before 2026.3.1015 |
Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N